160results about How to "Shorten connection length" patented technology

A switching device for controlling a large amount of current includes a circuit board carrying electronic components thereon, a power-switching element electrically connected to the circuit board, and a housing disposed underneath the circuit board and containing the power-switching element therein. The housing made of a heat-conductive material includes a heat-sink block having a sloped surface on which the power-switching element is mounted. Connecting leads extending from the power-switching element are positioned at an upper portion of the sloped surface which is close to the circuit board. In this manner, the length of connecting leads is shortened and heat and noises generated therein are suppressed.

A bed guard assembly includes a number of end panels, flexible connecting material for placement beneath a mattress, and connection pieces. The connection pieces connect the flexible connecting material to the end panels such that at least one end panel opposes another end panel when the flexible connecting material is disposed beneath a mattress. The end panel includes a rigid frame, a substantially horizontal rigid segment spanning an interior of the outer frame, and a fabric cover. The connection pieces are adjustable, and include a mechanism for pulling taut the connecting material.

A bed guard assembly includes an end panel, flexible connecting material for placement beneath a mattress, a base element coupled to the flexible connecting material, and connection pieces that connect the flexible connecting material to the end panel such that the end panel opposes the base element when the flexible connecting material is disposed beneath a mattress. The end panel includes a rigid outer frame and a substantially horizontal rigid segment spanning an interior of the outer frame.

The invention provides a constant temperature insulation system for thermal conductivity gas detection, comprising a constant temperature unit of a thermal conductivity sensor and a constant temperature unit of a gas guide pipe. The constant temperature unit of the thermal conductivity sensor comprises a gas guide chamber, the thermal conductivity sensor and a heating temperature control system of the gas guide chamber, wherein the thermal conductivity sensor is fixed in the gas guide chamber. The constant temperature unit of the gas guide pipe comprises the gas guide pipe and a heating temperature control system of the gas guide pipe, wherein one end of the gas guide pipe is led into the gas guide chamber. By respectively heating and controlling the temperature the gas guide pipe for conveying gas to be detected and the gas guide chamber where the thermal conductivity sensor is placed, the constant temperature insulation system enables the ambient temperature of the thermal conductivity sensor and the temperature of the gas to be detected in the gas guide pipe to be both slightly higher than the environmental temperature and keep constant. In the process of detection, the invention overcomes the defect of measuring temperature drift caused by the environmental temperature variation and improves the accuracy and the sensitivity of the thermal conductivity gas detection.

A multi-link piston crank mechanism for an internal combustion engine, including a crankshaft having a crank pin, and crank webs connected with each other through the crank pin. A pair of thrust surfaces are formed on the crank webs so as to be opposed in a direction of a center axis of the crank pin. A first link pivotally supported on the crank pin is coupled to a second link through a connection pin located in a space between the thrust surfaces. The connection pin is moveable about the crank pin to form a circular trace along which the thrust surfaces extend. The end surfaces of the connection pin and the thrust surfaces come into mutual contact to prevent the connection pin from falling out of the space between the thrust surfaces.